Calculators for mechanics, thermodynamics, waves, electromagnetism and more
Calculate acceleration using the formula a = (v − u) / t, where v is final velocity, u is initial velocity, and t is time.
Calculate force using Newton's second law: F = ma, where m is mass and a is acceleration.
Calculate kinetic energy using KE = ½mv² and momentum using p = mv.
Calculate voltage, current, resistance, and power using Ohm's Law: V = IR and P = VI.
Calculate the period and frequency of a simple pendulum using T = 2π√(L/g).
Calculate gravitational potential energy using PE = mgh
Calculate pressure using P = F/A
Calculate range, max height, and time of flight for a projectile launched at an angle
Calculate speed, distance, or time using s = d/t
Calculate wavelength using λ = v/f and wave period T = 1/f
Calculate centripetal force using Fc = mv²/r, where m is mass, v is velocity, and r is radius.
Calculate density using the formula ρ = m/V, where m is mass and V is volume.
Calculate observed frequency using the Doppler effect formula f' = f(v ± vₒ)/(v ∓ vₛ), where source and observer move relative to each other.
Calculate gravitational force using F = G m₁m₂ / r², where G = 6.674×10⁻¹¹ N·m²/kg².
Calculate impulse using J = FΔt, where F is force and Δt is the time interval.
Calculate momentum using p = mv, where m is mass and v is velocity.
Calculate force, mass, or acceleration using F = ma. Choose which variable to solve for.
Calculate power using P = W/t, where W is work or energy and t is time.
Calculate angular frequency and period in simple harmonic motion using ω = √(k/m) and T = 2π/ω.
Calculate work using W = Fd cosθ, where F is force, d is displacement, and θ is the angle between them.
Convert between acceleration units — meters per second squared, feet per second squared, g-force, and centimeters per second squared.
Convert between electric charge units — coulomb (C), millicoulomb, microcoulomb, nanocoulomb, and elementary charge.
Convert between electric current units — ampere (A), milliampere, microampere, and kiloampere.
Convert between electrical resistance units — ohm (Ω), milliohm, kiloohm, and megaohm.
Convert between electrostatic capacitance units — farad (F), millifarad, microfarad, nanofarad, and picofarad.
Convert between frequency units (Hz, kHz, MHz, GHz, THz) and see the corresponding wavelength λ = c / f.
Convert between illuminance units — lux, foot-candle, and lumen per square meter.
Convert between inductance units — henry (H), millihenry, microhenry, and nanohenry.
Convert between luminance units — candela per square meter, candela per square foot, foot-lambert, and nit (cd/m²).
Convert between magnetic flux units — weber (Wb), milliweber, and maxwell.
Convert between magnetic flux density (magnetic field) units — tesla (T), millitesla, gauss, and gamma.
Convert between moment of inertia units — kg·m², g·cm², lb·ft², lb·in², and oz·in².
Convert between sound level units — decibel (dB), neper, and bel.
Convert between surface tension units — N/m, mN/m, dyn/cm, lb/ft, and lb/in.
Convert between thermal conductivity units — W/(m·K), W/(m·°C), BTU/(ft·h·°F), and kcal/(m·h·°C).
Convert between thermal expansion coefficient units — per °C, per °F, and per K.
Convert between angular velocity units — radians per second, degrees per second, RPM, and revolutions per second.
Convert between dynamic (absolute) viscosity units — Pa·s, poise, centipoise (cP), and lb/(ft·s).
Convert between kinematic viscosity units — m²/s, stokes, centistokes (cSt), and ft²/s.